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1,474
RESULTS

Media Type
965
texts
225
audio
187
movies
58
images
19
software
10
data
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Topics & Subjects
186
survey
97
Geology
66
NASA Technical Reports Server (NTRS)
54
Survey
50
Natural history
48
Geological Survey (U.S.)
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Collection
346
American Libraries
214
Community Texts
178
Community Audio
75
Community Video
73
NASA Network Resource and Training Site
62
University of Illinois Urbana-Champaign
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Creator
73
nasa technical reports server (ntrs)
49
merriam, c. hart (clinton hart), 1855-1942
44
u.s. coast and geodetic survey
38
geological survey (u.s.)
35
illinois state geological survey
17
herbert booker
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Language
994
English
48
Indonesian
9
Handwritten English
9
Portuguese
7
Chinese
4
Spanish
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